On Feb 18, 2006, at 11:35 AM, J Poz wrote:
I have a specific business problem that I'm hoping someone has
ideas and/or has already worked out a solution.
My application needs to be able to automatically create and issue
faxes to many different fax machines. The volume is going to be
very high. And it is only about sending faxes and not receiving them.
My application is hosted by an ASP but the Linux (Fedora 2) server
is mine (dedicated). So the option of having PSTN lines to do faxes
is not an option since I don't own nor can put anything in the data
center. I found a SIP/VOIP provider that says they do faxing (and I
can connect to them using my own device (meaning asterisk or
something else if necessary)). Their requirement for faxing to work
on their end is to make sure i send them via their voip service
using G.711 codec.
So I've done alot of research on faxing and asterisk and hylafax
but I' m still at a loss. For starters, what is the architecture
that I need?
my application --> QUESTION MARK??? ----> VOIP Provider ---> PSTN
---> Fax Machine.
So first question, what should QUESTION MARK be? Is it just
Asterisk or a combination of Asterisk and something like hylafax
(fax manager). And depending on that answer, what is the
configuration that has to be made on it. Even reference to material
that explains the configuration would be very helpful to me at this
time.
Thanks in advance for the help,
The missing link might be iaxmodem. It has two interfaces: IAX
channel for asterisk, and a serial device (in /dev/) which emulates a
faxmodem. Then, fax away using hylafax. I have tried faxing over
SIP through a provider (broadvoice) to a coworker's fax on the pstn
this way, and it worked. I haven't done any testing in volume, though.
So you would have something like:
Doc -> hylafax -> iaxmodem -> * -> voip provider -> pstn -> fax machine
Phil
PS- I suppose if you had multiple SIP accounts with a provider, you
could create multiple iaxmodems and do things in parallel (assuming
enough bandwidth and cpu).
PPS- I hope you're not doing fax-spamming with this set up! ;')
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